Ship&#39;s davit.



E. w. MYERS. SHIPS DAVIT.

APPLICATION II LED APR. 6, 190B.

91 5,464 Patented Mar. 16, 1909.

2 SHEETS-SHEET 1..

MIWIIIHHM I llllflulmnn I WITNESSES N I INVENTOH zwmir/if e Q BY PETERScm. nusnmcrou, n. c.

1n: NORRIS E. W. MYERS.

SHIPS DAVIT. APPLIOATION FILED APR. 6, 1908.

915,464. Patented Mar. 16, 1909.

2 SHEETS-SHEET 2.

. WITNESSES v INVENTOH f I ATTORNEYS 45 to the deck C of the vessel.

NT Q IQ.

EVERETT W. MYERS, OF PORT TAMPA, FLORIDA.

snrrs Dnvrr.

To all whom it may concern:

Be it known that I, EVERETT W. IVIYERS, a citizen of the United States,and a resident of Port Tampa, in the county of Hillsboro and State ofFlorida, have invented a new and Improved Ships Davit, of which thefollowing is a full, clear, and exact description.

The object of the invention is to provide a new and improved shipsdavit, which is simple and durable in construction, easily manipulated,and arranged to allow of conveniently raising the boat from the waterand placing it in a position of rest on the chocks on the deck of thevessel, and to permit swinging the boat clear of the chocks and loweringit at the side of the vessel, and controlling the lowering from theboat.

The invention consists of novel features and parts and combinations ofthe same, which will be more fully described hereinafter and then setforth in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming-a part of this specification, in'whichsimilar characters of reference indicate corresponding parts in all theviews. I

Figure 1 is a side elevation of the improvement as applied, the shipsdeck being shown in longitudinal section; Fig. 2 is an end view of thesame, the ships deck being shown in cross section, and Fig.3 is asectional side elevation of one of the hinged chock sections, on theline 33 of Fig. .2 v

The boat A is normally seated on a pair of chocks B mounted on standards13 attached to the deck 0 of the ship or vessel, and the boat A isconnected at or near each end by tackles I) with the free ends of theswinging cranes E fulcrumed or pivoted at E on the standards B. Each ofthe cranes E is pro- V1(l6(l with a quadrant gear E 111 mesh with a wormwheel F having its shaft F journaled in suitable bearings G and G, ofwhich the bearing G is secured or formed on the standard B while theother bearing G is attached The worm wheel shaft F is provided with asuitable crank arm H, to permit of conveniently turn ing the said shaftF and the worm wheel F, for the latter to impart motion to the quadrantgear E so asto swing the corresponding crane E transversely from thenormal posi tion shown in full lines in Fig. 2 over into a Specificationof Letters Patent.

Application filed April 6, 1908.

Patented March 16, 1909.

Serial No. 4 5,399.

raising and lowering position, as indicated by dotted lines in the saidFig. 2.

The hoisting and loweringrrope D of each tackle D winds and unwinds 011the drum of a Windlass I having its shaft I journaled in bearingsarranged on the corresponding standard B, and another standard Jattached to the deck 0 of the vessel. The shaft I is provided with acrank arm K under the control of an operator forwinding up the hoistingrope D, to lift the corresponding end of the boat A up out of its seatin the cor responding chock B, preliminary to swinging the cranes E overafter lowering the boat A, as hereinafter more fully described. On thedrum of each Windlass I is secured a brake drum IJ engaged by a brakeband L connected with. a tightening lever I fuloru ned on the standard Band connected with a rope N normally tied to a cleat O on the deck C ofthe vessel, the said rope N, however, when detached from thecleat O,being taken hold of by an occupant in the boat A, when lowering thesame, to control the unwinding of the hoisting rope D unwinding from theWindlass I.

Each chock B is made in sections'B B of which the section B is theinboard section and is' secured or integrally formed on thecorresponding standard B, while the other section B is the outboardsection and is connected by hinges B to the standard B. The base of thechock section B" is inclined downwardly and outwardly, as plainlyindicated in Fig. 2, and the said base is beveled, as illustrated inFig. 3, in an upward direction, from the outward face of V the chockhaving the hinges B at the inner face thereof. Normally the hinged chocksection B is locked in active position by a hook and staple device P(seeFig; 3), which is opened by the operator whenever it is desiredtolower the boat, it being understood that when the chock section B isunlocked it readily swings downward to one side of the standard B, thusfreeing the outer side of the boat A to allow easy launching thereof.

The operation is as follows: .When the several parts are in the positionillustrated in full lines in the drawings, and it is desired to lowerthe boat A then the chock sections B are first unlocked to allow thesame to swing downward, to free the outer sides of the r boat A, andthen the operators turn the crank arms K to wind up the hoisting ropes Dwith a view to slightly raise the boat A, so that the latter clears thefixed chock sections B The operators now turn the crank arms H so as torotate the arms F and the quadrant gears E with a view to swing thecranes E outward into the position shown in Fig. 2. The ropes Nare-takenhold of by the occupants of the boat A, to control the brakemechanisms for the windlasses I, so that no person need be left on thevessel, and the boat A can be readily lowered, so as to strike the waterevenly. the boat reaches the water it is disconnected from the tackle D.When a boat A is to be raised from the water back onto the chocks B, thetackle D is connected with the boat at the time the cranes E are inactive position over the side of the vessel, as indicated in dottedlines in Fig. 2, and then the operators turn the crank arms K so as towind up the hoisting ropes. D, thereby raising the boat A up from thewater to the position shown in dotted lines in Fig. 2. WVhen thisposition is reached the operators turn the crank arms K, so as to swingthe cranes E inward and upward and with them the boat A, the latterbeing finally lowered on to the fixed chock sections B after which thehinged chock sections B are swung u 7 ward into an active position andlocked in p ace by the hook and staple device P. o

It is understood that when the chock sections B are in a lowermostposition, the outer downwardly inclined portions of the standards Ballow a ready outward or inward movement of the boat A without danger ofupsettingthe same. It will also be noticed that the crew of the boat Acan lower or raise the boat without the assistance of crews from otherboats, and when a boat is lowered incase of shipwreck or any otheremergency,

it is not necessary for any one to remain on the vessel, as the loweringof the boat can be readily controlled by the use of ropes N, as aboveexplained. V

The ships davit shown and described is very simple and durable inconstruction, is composed of comparatively few parts, not liable easilyto get out of order.

It will be noticed that the incline of the movable standards for therespective chocks is so arranged that the chock falls outward away fromthe boat, that is the standards are inclined in opposite directions andoutwardly. This permits them to swing open easily, the swinging beingassisted by the bulge'of the boat.

Having thus described my invention, I claim as new and desire to secureby Letters Patent V l. A ships davit for raising or lowering boats,comprising a pair of swinging cranes As soon as having quadrant. gears,worm wheels in mesh with the said quadrant gears, havin manuallycontrolled shai'ts ournaled on he deck of the ship, sectional chocks forsupporting the boat on deck of the vessel, the outboard chock sectionbeing pivoted, windlasses and tackle supported near the said cranes forraising and lowering the boat, and brake mechanisms for the windlassesand a flexible connection extending from the brake mech anisin, wherebysaid mechanism may be controlled from the boat.

2. A ships davit for raising or lowering boats, comprising standardsattached to the deck of the ship and carrying sectional chocks, one ofthe sections of each chock being fixed and the other section beinghinged on a beveled incline for the hinged section to swing open whenthe boat is raised, cranes mounted to swing on the said standards andhaving quadrant gears, worm wheels in mesh with the said quadrant gears,and having their manually controlled shafts j ournaled on the saidstandards and the ships deck, and means for supporting the boat from thecranes and for raising and lowering the boat when the cranes are swungoutward over the side of the vessel.

3. A ships davit for raising or lowering boats, comprising standardsattached'to the deck of the ship each standard having a fixed chocksection and a beveled incline, the inclines on the standards each facingout{ wardly away from the other standard, and a' movable chock sectionhinged to the standard on each incline, cranes mounted to swing" on thesard standard and having quadrant gears, worm wheels 111 mesh with thesaid quadrant gears, and having their manually controlled shaftsournaled on the sald standards and the ships deck, tackles forsupporting the boat from the said cranes, and windlasses mounted on thedeck of the vessel and connected with the said tackle for raising orjournaled on the said standards and the ships deck, tackles forsupporting the boat from the said cranes, windlasses mounted on the deckof the vessel and connected with the said tackle for raising or loweringthe boat, and brake mechanisms for the said windlasses and havingcontrolling ropes under the control of the operators in the boat.

5. A ships davit for raisingfor lowering In testimony whereof I havesigned my boats, comprising standards attached to the name to thisspecification in the presence of 10 dick 15f the ship, 63Gb stamliagdhaving ah fixed two subscribing Witnesses.

c 00 section an a beve e inc ine, t e inc 5 clines on the standards eachfacing away EVERETT MYERS from the other standard; and a movableWitnesses: chock section hinged to the standard on each M. C. WISE,incline. c T. E. LUCAS. c

